AS27311 — AS27311 - Biogen MA Inc

AS27311 announces 3 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

AS27311 is operated by Biogen MA Inc.

What it's used for

• The address space carries corporate infrastructure for a pharmaceutical company, as indicated by the netname BIOGEN and registrant Biogen MA Inc across all prefixes.
• The AS announces 1024 IPv4 addresses across 3 prefixes with 3 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access provider.

Notable

• All registrants in the RDAP data agree with the announcer, listing Biogen MA Inc for every prefix.
• The address inventory consists of three distinct IPv4 blocks: 161.199.170.0/23, 161.199.168.0/24, and 198.180.131.0/24, with no IPv6 prefixes announced.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 161.199.168.0/24
• 161.199.170.0/23
• 198.180.131.0/24

Upstream networks

• AS701 Verizon Business
• AS5400 British Telecommunications Limited
• AS46887 Crown Castle Fiber LLC

Adjacent networks

• AS701 Verizon Business
• AS5400 British Telecommunications Limited
• AS46887 Crown Castle Fiber LLC

Routing security

• RPKI: 0 valid, 0 invalid and 4 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-BT-DE, AS-CCF, AS-CCF-TEST, AS-GTTCUST.